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Test Code FOOD2 Food-Fruit Panel, Serum

Reporting Name

Food-Fruit Panel

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Establishing a diagnosis of an allergy to apple, banana, peach, and pear

 

Defining the allergen responsible for eliciting signs and symptoms

 

Identifying allergens:

-Responsible for allergic response and/or anaphylactic episode

-To confirm sensitization prior to beginning immunotherapy

-To investigate the specificity of allergic reactions to insect venom allergens, drugs, or chemical allergens

 

Testing for IgE antibodies is not useful in patients previously treated with immunotherapy to determine if residual clinical sensitivity exists, or in patients in whom the medical management does not depend upon identification of allergen specificity.


Ordering Guidance


This test uses a pooled allergen reagent; therefore, the multi-allergen Immunocap (panel cap) is reported with a single qualitative class result and concentration. This is the appropriate first-tier test for allergic disease.

 

For a listing of allergens available for testing, see Allergens - Immunoglobulin E (IgE) Antibodies



Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL for every 5 allergens requested

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Specimen Minimum Volume

0.3 mL

Specimen Type

Serum

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 14 days
  Frozen  90 days

Day(s) Performed

Monday through Friday

Reference Values

Class

IgE kU/L

Interpretation

0

<0.10

Negative

0/1

0.10-0.34

Borderline/equivocal

1

0.35-0.69

Equivocal

2

0.70-3.49

Positive

3

3.50-17.4

Positive

4

17.5-49.9

Strongly positive

5

50.0-99.9

Strongly positive

6

≥100

Strongly positive

Reference values apply to all ages.

Testing Algorithm

Includes testing for apple, banana, peach, and pear allergen.

Method Name

Fluorescence Enzyme Immunoassay (FEIA)

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

86003

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FOOD2 Food-Fruit Panel 46714-2

 

Result ID Test Result Name Result LOINC Value
FOOD2 Food-Fruit Panel 46714-2

Forms

If not ordering electronically, complete, print, and send an Allergen Test Request (T236) with the specimen.

Report Available

1 to 3 days